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Mild Catalytic DPF Regeneration and Related CO Emissions in Commercial Vehicles

Journal Article
2008-01-2643
ISSN: 1946-391X, e-ISSN: 1946-3928
Published October 07, 2008 by SAE International in United States
Mild Catalytic DPF Regeneration and Related CO Emissions in Commercial Vehicles
Citation: Villata, G., Tarabocchia, A., Bozzolini, V., Caroca, J. et al., "Mild Catalytic DPF Regeneration and Related CO Emissions in Commercial Vehicles," SAE Int. J. Commer. Veh. 1(1):338-346, 2009, https://doi.org/10.4271/2008-01-2643.
Language: English

Abstract:

La1-xAxNi1-yByO3 nanostructured perovskite-type oxides catalysts (where A = Na, K, Rb and B = Cu; x = 0, 0.2 and y = 0, 0.05, 0.1), also supporting 2% in weight of gold, were prepared via the so-called “Solution Combustion Synthesis (SCS)” method, and characterized by means of XRD, BET, FESEM-EDS and TEM analyses. The performance of these catalysts towards the simultaneous oxidation of soot and CO was evaluated. The 2 wt.% Au-La0.8K0.2Ni0.9Cu0.1O3 showed the best performance with a peak carbon combustion temperature of 367 °C and the half conversion of CO reached at 141 °C. The same nanostructured catalyst, deposited by in situ SCS directly over a SiC filter and tested on real diesel exhaust gases, fully confirmed the encouraging results obtained on the powder catalyst.